[Bug 1839317] Re: Grub fails to chainload the Windows Boot Manager

[John Finestone]

I have the same problem. To clarify, I can't boot into Windows from
Grub, but can boot into Ubuntu. When I get into Ubuntu, I run the Boot
Repair application, and after I shut down or restart, I can get into
Windows. But once, I shut down Windows or restart, Grub won't allow me
to reboot into Windows, so I have to reload Ubuntu and start the process
over.

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https://bugs.launchpad.net/bugs/1839317

Title:
  Grub fails to chainload the Windows Boot Manager

Status in grub2 package in Ubuntu:
  Confirmed

Bug description:
  After an update to 2.04 Grub fails to chainload into Windows.

  When selecting the menu item to boot into the Windows Boot Manager,
  the menu flashes and returns.

  When trying to chainload/boot via the Grub command line, nothing
  happens and the prompt reappears.

  When using the same commands in an earlier version (on a bootable USB
  stick) Windows sparks into life.

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